[PATCH 21/50] hid: usbhid: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:09:25
Also in:
alsa-devel, linux-media, linux-wireless, netdev
Subsystem:
hid core layer, the rest, usb hid/hidbp drivers (usb keyboards, mice, remote controls, ...) · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Jiri Kosina <redacted> Cc: linux-input@vger.kernel.org Signed-off-by: Ming Lei <redacted> --- drivers/hid/usbhid/hid-core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 9941828..e1d8518 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c@@ -489,8 +489,9 @@ static void hid_ctrl(struct urb *urb) struct hid_device *hid = urb->context; struct usbhid_device *usbhid = hid->driver_data; int unplug = 0, status = urb->status; + unsigned long flags; - spin_lock(&usbhid->lock); + spin_lock_irqsave(&usbhid->lock, flags); switch (status) { case 0: /* success */
@@ -525,7 +526,7 @@ static void hid_ctrl(struct urb *urb) } clear_bit(HID_CTRL_RUNNING, &usbhid->iofl); - spin_unlock(&usbhid->lock); + spin_unlock_irqrestore(&usbhid->lock, flags); usb_autopm_put_interface_async(usbhid->intf); wake_up(&usbhid->wait); }
--
1.7.9.5